21mm EXTREME HSS Bi-metal Holesaw

21mm EXTREME HSS Bi-metal Holesaw

  • For cutting steel, stainless steel, aluminium, brass, copper, zinc, tin, wood, plaster and plastics
  • Hardened tooth design with 8% additional cobalt provides 2x life (vs standard bi-metal)
  • Angled plug removal slots to make plug ejection easier
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Product Overview

21mm Bi-metal hole saw featuring hardened tooth design with additional cobalt. Efficient debris removal thanks to the double tooth design with shallow and deep shoulder.

Additional Features

  • Deep cut style hole saws will cut 2-by material in 1 pass


  • Brass
  • Wood
  • Plastic
  • and other composites
  • Stainless Steel
  • Copper
  • Used by plumbers and electricians on site
  • Plaster
  • Aluminium
  • Steel


Product Length
5.1 in
Product Width
4.2 in
Product Height
11 in
Application Material
Multi Material
Multi Material
Number of Pieces
Product Weight
0.045 lbs


No Limited Warranty

We’re confident of the quality of our products and we’ll repair, without charge, any defects due to faulty materials or workmanship within the specified warranty.

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We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant industry regulations.

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